Power Systems A loss less transmission line has a length of 600 km, find the phase shift of voltage signal? 42° 36° 90° 45° 42° 36° 90° 45° ANSWER DOWNLOAD EXAMIANS APP
Power Systems Consider a long, two wire line composed of solid round conductors. The radius of both conductors is 0.25 cm and distance between their centers is 100 cm. If this distance is doubled, then the inductance per unit length. Increase but does not doubled. Doubled. Halves. Decrease but does not halves. Increase but does not doubled. Doubled. Halves. Decrease but does not halves. ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a 220 kV system, the inductance and capacitance up to the circuit breaker location are 25 mH and 0.025 µF respectively. The value of resistor required to be connected across the breaker contacts which will give no transient oscillations, is 500 Ω 250 Ω 1000 Ω 25 Ω 500 Ω 250 Ω 1000 Ω 25 Ω ANSWER DOWNLOAD EXAMIANS APP
Power Systems The value of off diagonal elements is which is connected between bus i and bus j with positive sign sum of admittances connected at bus i sum of admittances connected at bus j which is connected between bus i and bus j with negative sign which is connected between bus i and bus j with positive sign sum of admittances connected at bus i sum of admittances connected at bus j which is connected between bus i and bus j with negative sign ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 25 MVA, 11 kV alternator is supplying full load at a point of 0.75 lagging. Determine the percentage increase in earning capacity when it is operated at improved power factor of 0.96 lagging. 14 %. 28 %. 56 %. None of above 14 %. 28 %. 56 %. None of above ANSWER DOWNLOAD EXAMIANS APP
Power Systems Aluminium is now most commonly employed conductor material in transmission lines than copper because costlier it is more conductive its tensile strength is more it is cheaper and lighter costlier it is more conductive its tensile strength is more it is cheaper and lighter ANSWER DOWNLOAD EXAMIANS APP
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